John Matthews. Recursive Function Definition over Coinductive Types. In Yves Bertot, Gilles Dowek, André Hirschowitz, C. Paulin, Laurent Théry, editors, Theorem Proving in Higher Order Logics, 12th International Conference, TPHOLs 99, Nice, France, September, 1999, Proceedings. Volume 1690 of Lecture Notes in Computer Science, pages 73-90, Springer, 1999. [doi]